Franklynn Pineapple Hybrid Breeding for Sweetness and Spineless Leaves
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Solution Overview
Problem
There is a need for a new pineapple variety that combines superior vigor, fruit size, flavor, sweetness, and flesh texture, as existing varieties like 'Hilo White' and 'Dry Sweet' have limitations in skin color, leaf characteristics, acidity, and sweetness levels.
Innovation Solution
The development of the 'Franklynn' pineapple variety, a hybrid of 'Dry Sweet' and 'Hilo White', which exhibits dark orange skin, smoother leaf margins, increased sweetness, and a unique combination of characteristics that differentiate it from both parent varieties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the pineapple variety uses yellow skin color like Hilo White or Dry Sweet, then it maintains traditional appearance characteristics, but it fails to achieve the desired dark orange skin color that improves visual appeal and marketability
Solution Approach 1:
The patent applies parameter changes by selecting and breeding plants that exhibit variation in skin color parameters, specifically targeting the development of dark orange coloration. Through multiple generations of selection and asexual propagation, the skin color parameter has been stabilized at the desired dark orange level while maintaining other variety characteristics.
2Shape
If the pineapple variety has spined leaf margins like Dry Sweet, then it maintains traditional leaf characteristics, but it fails to provide the completely smooth, spine-free margins that improve safety and handling
Solution Approach 1:
The patent applies the taking out principle by selectively removing the harmful spines from the leaf margins through breeding selection. The spine trait was identified and eliminated from the variety, resulting in completely smooth leaf margins that maintain the structural integrity and appearance of traditional pineapple leaves while removing the harmful spined characteristics.
3Quantity of substance
If the pineapple variety has lower sweetness like Hilo White or Dry Sweet with Brix values of 17-19%, then it maintains traditional flavor profile, but it fails to achieve the superior sweetness level with Brix values of 21-26% that improves consumer appeal
Solution Approach 1:
The patent applies parameter changes by selecting plants with varying sweetness parameters and breeding to stabilize the higher sweetness level. Through systematic selection and asexual propagation over multiple generations, the Brix value parameter has been reliably increased from the parental 17-19% range to the new variety's 21-26% range, ensuring consistent sweetness across all propagated plants.
4Quantity of substance
If the pineapple variety has higher acidity like Dry Sweet, then it maintains traditional flavor balance, but it fails to provide the reduced acidity that enhances perceived sweetness and overall flavor quality
Solution Approach 1:
The patent applies parameter changes by selecting and breeding plants with reduced acidity parameters. Through multiple generations of selection and asexual propagation, the acidity parameter has been reliably decreased while maintaining flavor balance, resulting in a consistent low-acidity profile that enhances the perceived sweetness and overall quality of the fruit.
5Length of moving object
If the pineapple variety has longer peduncle like Hilo White, then it maintains traditional structural characteristics, but it fails to achieve the shorter peduncle length that improves fruit presentation and reduces waste
Solution Approach 1:
The patent applies parameter changes by selecting plants with varying peduncle length parameters and breeding to stabilize the shorter length. Through systematic selection and asexual propagation, the peduncle length parameter has been reliably reduced while maintaining the structural functionality and appearance appropriate for pineapple fruit presentation.
Data Source
AI summary
A new pineapple (Ananas comosus) variety of the Bromeliaceae family was developed from a cross between the parental lines ‘Dry Sweet’בHilo White’ and has been designated ‘Franklynn’. This new variety differs from its progenitors in having a higher Brix value, distinct fruit skin and flesh colors, and excellent eating quality. The plant is characterized by relatively (for pineapple) flat, spineless leaves that are green with purple coloration, and a peduncle that is partially or completely obscured by a high number of green bracts. The plant has a cylindrical and symmetrical fruit borne on a penduncle. The fruit has a lightly textured shell and flat fruitlets (eyes) with a medium sized crown. When unripe, the fruit shell is greyed-purple (RHS 187A), turning to a greyed-orange color (RHS 167B) when ripe. The fruit flesh appears cream colored and codes to a pale yellow (RHS 8D).